Pope Leo XIV Visits İznik: Fulfilling the Mysterious Will and Reviving the Legacy of the First Council of Nicaea 325 AD

Pope Leo XIV visited the city of İznik in Turkey, highlighting its historical and religious significance 1,700 years after the “First Council of Nicaea” in 325 AD, which established the Nicene Creed and defined the doctrine of the Trinity.

The city is a key site in Christian history, where 318 bishops convened to formulate the shared theological foundations of the Christian Church at the invitation of Emperor Constantine.

Historical and Spiritual Center for Christianity

According to sources close to the Ecumenical Patriarchate, Pope Francis had instructed before his death that his successor visit İznik to commemorate a “Year of Christian Unity” at the site where the shared Christian doctrine originated.

Pope Leo XIV fulfilled this will in the presence of Patriarch Bartholomew, standing before the ruins of the Basilica of Saint Neophytus to offer a joint prayer of thanksgiving.

İznik-Istanbul 2025 Declaration

The Pope and Patriarch Bartholomew announced the signing of a historic joint declaration noting that “obstacles still prevent full unity between the Catholic and Orthodox Churches,” while emphasizing their spiritual and doctrinal connection.

They also renewed support for the International Joint Theological Dialogue Commission, reaffirming rejection of using religion or the name of God to justify violence, and urging world leaders to make every effort to end the tragedies caused by wars.

İznik holds exceptional symbolic significance as the birthplace of the formal Christian creed, where the Nicene Creed was established and Easter was formally scheduled. The submerged 4th-century basilica under the lake still retains historical secrets yet to be revealed.

The Mysterious Will: Prophecies or a Sign of Unity?

Since Pope Francis’ death and the subsequent earthquake, the visit has revived attention to the prophecies of Saint Malachy, where Francis was the 112th pope and Pope Leo XIV is the 113th and last according to the prophecy referring to the Roman Peter and the destruction of the city with seven hills.

Although the Vatican has rejected these interpretations, the timing of the visit and Francis’ insistence on İznik have sparked interest in the interpretation of the mysterious will, which some view as a symbolic indicator of Christian unity.

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